Silicon Nitride Degassing Shaft and Rotor

Product Description

Silicon Nitride Degassing rotor is designed for excellent performance including easily replaceable and repairable separated shaft and impeller, good washing resistance of molten aluminum, high oxidation resistance, high-speed and efficient dispersal and removal of hydrogen and other unwanted particles, long service time.

Physical and chemical index

Types	GasSi3N4
Density	>3.2g/cm3
Si3N4 content	>92%
Flexural strength	>700Mpa
Compressive strength	>1500Mpa
Thermal conductivity(W/mk)	16-22
Porosity	0
Thermal expansion coeff.(RT-1000℃)	3.2
Max temperature In air	1400℃
Hardness(HRA)	>92

Features

1, Moulding: Cold isostatic pressing(CIP)

2, Sintering: GPSN

3, High strength &good compactness

4, Low thermal expansion coefficient

5, Excellent thermal shock resistance

6, No wetting by molten aluminum and other non-ferrous molten metal

7, Good corrosion resistance

Common size:

Impeller diameter: φ200mm.

Shaft length: 500~1000mm.

We can also prodcue other sizes according to your drawing.